Huiao's car charger is univesal for the car(12V-24V),Truck(12V-36v).They adopt the high quality IC and materials,the Fuse is 3A(Max).The PCBA is with protection Circuit.The PCBA is with low voltage circuit,make sure the car and truck voltage when starting may be up to 14v and 28V to reduce to 12V immediately, and transfer the voltage output to the suitable voltage work for all of the car electronics ,including GPS,Car DVR, GPS Tracker, OBD,mobile phone.etc.The feature:Intelligent low voltage protection;

Intelligent over current overload protection

Anti reverse connection protection

Intelligent over temperature anti-explosion protection:Electrical Specification and Characteristics1.input characteristics 1. Rated Input DC: 12~24V 2. IC input Voltage Range Input Voltage Range DC: 12~24V 3 DC Input Current Max. Input Current: 2000mA 4. Efficiency Input voltage 12V-24Vdc with full load input current , the charger working efficiency is > 85% 5. Down Voltage Protection CP input voltage in11V-11.5V(5%), IC don't work to protect itself, in 11.5V-24V(5%) can work well.2 Output Characteristics1 Rated Output VoltageRated output DC voltage range: 5.0V, in connecting to power supplies, No - load voltage about 5.7V,for a moment it reduce to 5V.2. Output Voltage No load output voltage: 4.8-5.7V Full load output voltage: 4.75~5.4V3 Rated output current The rated output current under CC working mode is 1.5A4 Rated Power Rated output power is 7.5W5. Charger output voltage / Current characteristicsAccording to the actual testing output6 Output Ripple, NoiseThe output capacitor 220uF, 20MHz oscilloscope bandwidth limit when measured ripple of less than 100mV pp7. Start-up Delay At nominal input voltage of the charger should work fine start delay time of less than 3 Seconds8. Shut-down DelayIn the CC or CV mode turns off within a second voltage drops below 2V9. Over charge current10% when the charger CC mode conversion, the fluctuation in the 10ms range not exceeding the normal time The detail Protection of PCBA Circuit.1.Over Current ProtectionWhen input voltage is 12-24V, the built-in IC with over current protection, the output over current protection is among 3.0A.2..Short-circuit ProtectionAfter the USB output short circuit, no damage to product, when short circuit exempted, the output resume normal.3. Over Voltage Protection The output realizes the over voltage protection by the main chip4.. Output Voltage Auto. Self Compensation ProtectionThis car charger designed with self compensation protection concerning the long conduction wires causing minor voltage loss then the output may not meet the spec. parameter. Thus, when the input current rises to 1.5A, the output voltage will raise to 5.4V max from 4.65V so as to meet the spec. parameter. If there is voltage rise when primarily loaded, it is normal. Safety and Reliability1. StaticsIn the contact discharge ± 4kV and ± 8kV air discharge mode, respectively discharge around 10 times correct action2. Temperature RiseWhen ambient temperature 25 ºC at the input voltage of 12V-24Vdc, USB output load 1.5A with constant 24 Hours working, the case surface temperature below 50 ºCConstant Working Time3.When rated input voltage and output current is 1.5A, no damage occurred to the charger after 96 hours continuous working.4. MTBFUnder ambient temp.25 ºC with normal input, the max output load of the charger is 80%, 90% of its MTBF of 5000 hours